Avid Racing Fatory have one mate, there in this section
I think you're slightly confused, as I don't see it, and if they had it, I would have already tried it.
Have you considered trying a Zonda Tune maybe? See what happens!
As soon as I get my hands on one I will get a tune out for it. I have not had much luck finding one. I have a few other projects but if someone wants to donate one I will tune it. Otherwise its up to the used car dealer to produce one.